topic: Блог

Daga Babban Ceph Latency zuwa Kernel Patch ta amfani da eBPF/BCC

Linux yana da ɗimbin kayan aiki don gyara kernel da aikace-aikace. Yawancin su suna da mummunan tasiri akan aikin aikace-aikacen kuma ba za a iya amfani da su a samarwa ba. Shekaru biyu da suka gabata, an haɓaka wani kayan aiki - eBPF. Yana ba da damar gano kernel da aikace-aikacen mai amfani tare da ƙananan sama kuma ba tare da buƙatar sake gina shirye-shirye da zazzage ɓangare na uku ba.

Yadda ake shirya gidan yanar gizon don kaya masu nauyi: 5 nasiha mai amfani da kayan aiki masu amfani

Masu amfani da gaske ba sa son shi lokacin da albarkatun kan layi da suke buƙata yana jinkirin. Bayanan bincike sun nuna cewa kashi 57% na masu amfani za su bar shafin yanar gizon idan ya ɗauki fiye da daƙiƙa uku don ɗauka, yayin da 47% ke shirye su jira daƙiƙa biyu kawai. Jinkirin daƙiƙa ɗaya na iya kashe 7% a cikin jujjuyawar da 16% a cikin rage gamsuwar mai amfani. Sabili da haka, kuna buƙatar shirya don ƙara yawan kaya da hawan zirga-zirga. […]

Ƙwaƙwalwar wawa, motsin zuciyar da ke ɓoye, algorithms masu yaudara: juyin halittar fuska

Masarawa na dā sun san abubuwa da yawa game da vivisection kuma suna iya bambanta hanta daga koda ta hanyar taɓawa. Ta hanyar swaddling mummies daga safiya zuwa maraice da yin waraka (daga trephination zuwa cire ciwace-ciwacen daji), ba makawa za ku koyi fahimtar jikin mutum. Arzikin dalla-dalla na jiki ya fi lalacewa ta hanyar rudani wajen fahimtar aikin gabobin. Firistoci, likitoci da talakawa sun sanya hankali a cikin zuciya, kuma [...]

Canji daga monolith zuwa microservices: tarihi da aiki

A cikin wannan labarin, zan yi magana game da yadda aikin da nake aiki a kai ya canza daga babban monolith zuwa saitin microservices. Aikin ya fara tarihinsa da dadewa, a farkon 2000. An rubuta sigar farko a cikin Visual Basic 6. Bayan lokaci, ya bayyana a fili cewa ci gaba a cikin wannan harshe a nan gaba zai yi wuya a tallafawa, tunda IDE […]

Kwayar cutar ta Lurk ta yi kutse a bankuna yayin da talakawan ma'aikatan nesa suka rubuta ta don haya

An karbo daga littafin “Mayewa”. Takaitaccen Tarihin Masu Hackers na Rasha" A cikin watan Mayu na wannan shekara, gidan wallafe-wallafen Individuum ya wallafa wani littafi na dan jarida Daniil Turovsky, "Mamayarwa. Takaitaccen Tarihin Hackers na Rasha." Ya ƙunshi labarun daga gefen duhu na masana'antar IT na Rasha - game da mutanen da suka yi soyayya da kwamfyuta, sun koyi ba kawai shirye-shirye ba, amma don fashin mutane. Littafin yana tasowa, kamar sabon abu da kansa, daga [...]

Rahoton bayan mutuwar Habr: ya fada kan wata jarida

Ƙarshen farkon farko da farkon wata na biyu na bazara 2019 ya zama mai wahala kuma an yi masa alama da manyan faɗuwa da yawa a cikin ayyukan IT na duniya. Daga cikin sanannun: abubuwa biyu masu tsanani a cikin kayan aikin CloudFlare (na farko - tare da karkatattun hannaye da halin sakaci ga BGP a wani ɓangare na wasu ISPs daga Amurka; na biyu - tare da karkatar da tura CF da kansu, wanda ya shafi kowa da kowa mai amfani da CF. , […]

Makarantar masu shirye-shirye hh.ru ta buɗe daukar ma'aikatan IT a karo na 10

Sannu duka! Lokacin rani ba kawai lokacin hutu, hutu da sauran abubuwan jin daɗi ba ne, har ma lokacin yin tunani game da horo. Game da ainihin horon da zai koya muku mashahurin yarukan shirye-shirye, "ɗaɗa" ƙwarewar ku, nutsar da ku cikin warware ayyukan kasuwanci na gaske, kuma, ba shakka, ba ku fara samun nasara mai nasara. Haka ne, kun fahimci komai daidai - za mu yi magana game da Makarantarmu [...]

Daga bayar da lamuni zuwa ga baya: yadda za a canza aikin ku a 28 kuma ku koma St. Petersburg ba tare da canza ma'aikaci ba.

A yau muna buga wata kasida ta ɗalibin GeekBrains SergeySolovyov, wanda a cikinsa ya ba da labarin kwarewarsa game da canjin aiki mai tsattsauran ra'ayi - daga ƙwararren ƙwararren bashi zuwa mai haɓaka baya. Wani batu mai ban sha'awa a cikin wannan labarin shine Sergei ya canza sana'arsa, amma ba kungiyarsa ba - aikinsa ya fara kuma ya ci gaba a Bankin Kuɗi da Kuɗi. Yadda abin ya fara Kafin ya koma IT [...]

An saki Mageia 7 rabawa

A ƙasa da shekaru 2 bayan fitowar sigar 6 na rarraba Mageia, an sake sakin sigar 7 na rarraba. A cikin sabon sigar: kernel 5.1.14 rpm 4.14.2 dnf 4.2.6 Mesa 19.1 Plasma 5.15.4 GNOME 3.32 Xfce 4.14pre Firefox 67 Chromium 73 LibreOffice 6.2.3 GCC 8.3.1 da faci da yawa. Source: linux.org.ru

Kuma Ubangiji ya ba da umurni: "yi hira da karɓar tayi"

Labari na gaskiya bisa al'amuran almara. Duk abin da ya faru ba na haɗari ba ne. Duk barkwanci ba abin dariya ba ne. - Sergey, hello. Sunana Bibi, abokin aikina Bob kuma mu biyu ne ... shugabannin ƙungiyar, mun daɗe a cikin aikin, mun san duk abubuwan da ke cikin zuciya kuma a yau za mu sadarwa game da ilimin ku da basirar ku. An rubuta a cikin CV ɗin ku cewa kai babba ne, [...]

An saki Debian 10 "Buster".

Membobin al'ummar Debian sun yi farin cikin sanar da sakin tsayayyen sakin na gaba na tsarin aiki na Debian 10, codename buster. Wannan sakin ya haɗa da fakiti sama da 57703 da aka haɗa don tsarin gine-gine masu zuwa: 32-bit PC (i386) da PC 64-bit (amd64) 64-bit ARM (arm64) ARM EABI (armel) ARMv7 (EABI hard-float ABI, armhf) MIPS (mips (babban endian […]

Yadda ake Amfani da Ilimin Kimiyyar Kwamfuta

Yawancin masu shirye-shiryen zamani sun sami iliminsu a jami'o'i. Bayan lokaci, wannan zai canza, amma yanzu abubuwa sun kasance masu kyau a cikin kamfanonin IT har yanzu suna zuwa daga jami'o'i. A cikin wannan sakon, Stanislav Protasov, Daraktan Harkokin Jami'ar Acronis, yayi magana game da hangen nesa na siffofin horar da jami'a don masu shirye-shirye na gaba. Malamai, ɗalibai da waɗanda suke aiki da su na iya ma […]